In no particular order...
7th Generation iPad: I think it's certainly enticing if someone doesn't already own an iPad. No further thoughts here; although I dislike how Apple is pushing hard at it being a PC replacement. While the iPad Pro is certainly powerful, I'm not quite sure it'll really reach that level of being a PC replacement.
Apple Arcade: I honestly don't care about this in the slightest. Good for those who use their iPhone/iPad for gaming, I guess?
Apple TV+: We really have reached an era where every Bob and Sally wants to launch their own TV streaming services to compete with Netflix, huh? I'm withholding my opinion on this for now, except to say that I'm... not really that enthralled with what I've seen. We'll see if Apple TV ends up being a gimmicky service that barely anyone ends up using, or whether it'll gain steam. As it stands though, I find it hard to convince someone who's already subscribed to Hulu and Netflix to also subscribe to Apple TV. Those subscriptions add up.
Apple Watch: Probably the most drawn out thing this presentation, to the point where I was honestly kinda starting to get tired of Apple rambling on about it. Sure, the 5th series Apple Watch is perhaps great, and you can customize your watchband and it apparently saves people's lives. You don't.... have to go on and on about it. That's just kinda being pretentious, but maybe that's just me.
iPhones: And here we have the meat of the whole presentation. I gotta admit, it's hard to say that one isn't impressed by Apple's price-lowering strategy. I can't help but feel, though, that this is a slap to the face to anyone who purchased a X, XR, XS or XS Max because why pay a thousand bucks when you could've stuck with your iPhone 8 until this came out? Granted, I don't think anyone foresaw Apple lowering prices on... anything, much less their iPhones, but I feel like if I were a user that purchased an iPhone within the last two or three years, I'd feel a bit cheated, to be honest. Not that I'd have a whole lot of reason to upgrade to begin with, but it would've saved me time and money, at least.
I do feel like this is a stopgap year, though. The biggest thing Apple is touting about in the iPhone 11 series is the camera. I see that their approach is to compete with both the Pixel and the P30 Pro, so we'll see how that goes. But I think if you purchased an iPhone within the last few years, unless you're a professional/hobbyist photographer or cinematographer, I don't see a very strong reason to upgrade. It seems like this presentation was more or less geared towards those in the media industry wanting this rather than your everyday layperson utilizing this. I'd wait until 2020 to see the truly exciting stuff.